I recently made a 90 min clone and it came out great. Righteous even. This has been my best effort yet. So, with regard to your questions I offer this:
1. I left mine in 9 days.
2. I hopped it immediately and left it in the secondary for 11 days.
3. This is one that was not near ready at three weeks. In fact, I didn't get a really good bottle until almost 8 weeks. This is one where patience is key. The longer the better. At least in my experience.
By the way, can you post your recipe? I would like to compare to mine, which was plastered all over the internet by the way. Good luck.